Ink cartridge



FIG. 1 is a front, top and left side perspective view of an ink cartridge showing our new design;

FIG. 2 is a rear, bottom and right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines inside the three recesses in FIGS. 1 and 5 represent the boundaries of the claimed design. The remaining broken line in the figures depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for an ink cartridge, as shown and described. 